Enables amyloid-beta binding activity and carbohydrate binding activity. Involved in SCF-dependent proteasomal ubiquitin-dependent protein catabolic process and protein ubiquitination. Acts upstream of or within glycoprotein catabolic process; regulation of protein ubiquitination; and ubiquitin-dependent ERAD pathway. Located in cytosol and dendritic spine. Part of SCF ubiquitin ligase complex. Is expressed in brain; testis; and vestibulo-cochlear ganglion. Orthologous to human FBXO2 (F-box protein 2). [provided by Alliance of Genome Resources, Apr 2022]